Choosing and Changing Your Major in a US University

Why so many US students start undeclared

The US bachelor's degree structure spends the first one to two years on general education requirements: writing, math, science, and humanities courses everyone takes regardless of major. This lets you sample subjects before you commit, unlike systems that require a direct application into one field.

Many colleges let you enroll as "undeclared" or "undecided" for your first year or two, then choose a major after taking introductory classes in a few departments. Selective programs like engineering, nursing, or business sometimes require you to apply or declare earlier, so check your specific college's policy rather than assuming you have two full years.

How declaring a major works

Declaring a major usually means submitting a form through your registrar or academic advising office naming your department, sometimes with a short application if the major is competitive or capped. Your advisor of record then changes from a general advisor to a faculty advisor in your new department.

• Meet your academic advisor to confirm you meet any GPA or prerequisite requirement for the major

• Submit the declaration form through your student portal or registrar's office

• Get assigned a new advisor in your department

• Review your new degree audit to see which past courses count toward the major

For general guidance on how US academic advising and major declaration work, see resources from the National Academic Advising Association (NACADA) , alongside your own school's advising center.

Changing your major after you have declared

Switching majors partway through your degree is common in the US and carries no formal penalty on your transcript. The process mirrors initial declaration: a form, an advisor meeting, and a review of which completed credits transfer into the new major's requirements.

The real cost is time, not paperwork. If your new major requires prerequisite courses you have not taken, or a different sequence of core classes, you need extra semesters to graduate. Ask your new department for a sample four-year plan mapped against the credits you have already completed before you commit to the switch.

Switching majors versus switching schools

Changing your major inside your current university is an internal academic process. Transferring to a different university entirely is a bigger step: it requires a new admissions application, a new Form I-20 from the new school, and a formal SEVIS transfer between your current and new DSO.

If you are unhappy with your current major and considering leaving your school entirely, talk to your international student office about the transfer process before you apply anywhere else, since a poorly timed transfer creates a gap in your F-1 status.

Deadlines and how many times you can switch

Most schools set a deadline each term to declare or change a major, often weeks before registration for the following semester opens, and some cap how many times you switch without a special petition. Check your registrar's academic calendar for the exact date each semester, since missing it usually pushes your change to the following term.

How a major change affects your F-1 status

Changing your major does not by itself put your F-1 or J-1 status at risk, as long as you stay enrolled full-time throughout. What matters to your immigration status is your enrollment record, not which subject appears on your diploma.

Your school still has to keep your SEVIS record accurate. A designated school official (DSO) updates your major field in SEVIS within 21 days of the change, and you receive a new Form I-20 reflecting your updated program of study, as of August 2026, according to Study in the States guidance for DSOs. Keep the updated I-20, since a mismatch between your actual major and your SEVIS record causes problems later, for instance when you apply for OPT.

A major change that pushes you past your program's expected end date usually requires your DSO to also extend your Form I-20 program dates. Raise this with your international student office as soon as you know your new major takes longer, rather than waiting until close to your original graduation date.

Major choice and your future OPT eligibility

Some STEM-designated majors qualify graduates for a longer Optional Practical Training extension after graduation, on top of the standard OPT period every F-1 graduate gets. If you are weighing a switch into or out of a STEM-designated major, especially in your final year, ask your DSO how the change affects your OPT eligibility before you commit, since this depends on the exact major code your school assigns.

If you still are not sure what to choose

Use your first year to sample departments through introductory courses, not only to satisfy general education requirements. Visit your career center for a major exploration questionnaire, sit in on an upper-level class in a subject you are curious about, and talk to current students in a department about their coursework before you declare.

Questions to ask before you switch

• Will this change add semesters, and do I still finish within my current program length?

• Which of my completed credits count toward the new major's requirements?

• Does my new major have a separate application, GPA minimum, or capacity limit?

• Does my DSO need to update my I-20 program dates as well as my major?

• Will this change affect my scholarship, assistantship, or financial aid eligibility?